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https://issues.apache.org/jira/browse/MAPREDUCE-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14485532#comment-14485532
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Jian Fang commented on MAPREDUCE-6304:
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mapreduce.job.label may not be enough. There should be at least another
parameter such as mapreduce.job.am.label for the application master. For
example, on EC2, we don't want to run an application master on a spot instance,
but we do allow MR tasks to run on spot instances (otherwise, what is the
purpose to use instances?). Furthermore, Application Master is a special Yarn
container and MRAppMaster does not run as a YarnChild, right?
> Specifying node labels when submitting MR jobs
> ----------------------------------------------
>
> Key: MAPREDUCE-6304
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6304
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: Jian Fang
> Assignee: Naganarasimha G R
>
> Per the discussion on YARN-796, we need a mechanism in MAPREDUCE to specify
> node labels when submitting MR jobs.
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